Quote Originally Posted by Fivefingerdeathpunch View Post
Kinda looks like that cylinder burns some oil. It's common for the DOD to use some oil.
Ya I was researching the GXP a lot before I bought it and new this was an issue, luckily my car doesn't burn that much right now. I threw a code for a cylinder 7 misfire and wanted to changed all of them because I am not sure how well taken care of it was before I got it. Now it gets the best of everything I put some NGK IX in it, and the difference is night and day. Just on the throttle response alone, it moves when you give it some gas. I also put some Fuel System cleaner in my tank when I refilled up so hopefully that'll help freshen everything up. It already has MSD wiring, K&N cold air intake, SLP cat-back exhaust system, transmission cooler, and just slapped some new rubber on her too. In love with this car

As far as the spark plug, it looks to me like a combo of just normal where it some of the oil burned, not much, but not the same as the others. It's not something I am worried about though.